//
//  NameRegister.cs
//
//  Author:
//       Willem Van Onsem <vanonsem.willem@gmail.com>
//
//  Copyright (c) 2013 Willem Van Onsem
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
using System.Collections.Generic;

namespace ZincOxide.Utils {

    public class NameRegister<T> : INameRegister<T> where T : IName {

        private readonly Dictionary<string,T> dictionary = new Dictionary<string, T> ();

        #region INameRegister implementation
        public void Register (T value) {
            if (value != null) {
                string key = value.Name;
                if (!this.dictionary.ContainsKey (key)) {
                    this.dictionary.Add (key, value);
                }
            }
        }

        public virtual bool Contains (string name) {
            return (this.dictionary.ContainsKey (name));
        }

        public virtual T Lookup (string name) {
            T val;
            if (this.dictionary.TryGetValue (name, out val)) {
                return val;
            } else {
                throw new ZincOxideNameNotFoundException ("Name \"{0}\" not found in the name register.", name);
            }
        }
        #endregion

    }
}

